Children are collapsed during expanding of parent
Curly brackets are added
Merge pull request #229 from vmoyseenko/DUI-MarginsFix

Margins change
Merge pull request #240 from vmoyseenko/DUI-CollapseNextLevelItems

Children should be collapsed during expanding of parent
Merge remote-tracking branch 'remotes/origin/Sitrus2' into DUI-MarginsFix